MCX 4.0 V8 TT vs EA839

Side-by-side reliability comparison

Reliability score
Tied 72/100
0 / 100
ACCEPTABLE MCX 4.0 V8 TT Porsche
0 / 100
ACCEPTABLE EA839 Porsche

Specifications

MCX 4.0 V8 TT
EA839
Brand
Porsche
Porsche
Verdict
ACCEPTABLE
ACCEPTABLE
Reliability
72
72
Years
2019--present
2016--present
Displacement
3996 cc
2995 cc
Layout
V8
V6
Type
Petrol Turbo
Petrol Turbo
Power
480--660 hp
340--440 hp
Known Issues
1
4
Total Risk Cost
€500--€1,500
€3,300--€8,300

Character

MCX 4.0 V8 TT

"Cayenne Turbo/Turbo GT. Same Audi 4.0 TFSI family. Hot-V design. Strong. Carbon buildup. Turbo at extreme outputs. Premium ownership but reliable for what it does."

EA839

"Audi-derived V6TT. Strong, refined. Coolant transfer tube is Achilles heel. Porsche tax on repairs."

Issues Comparison

MCX 4.0 V8 TT 1

● MODERATE
Carbon buildup (DI) €500--€1,500 60,000 km--120,000 km

EA839 4

▲ HIGH
Coolant transfer tube leak €1,500--€3,500 60,000 km--120,000 km
● MODERATE
Turbo wastegate rattle €800--€2,500 40,000 km--100,000 km
● MODERATE
Oil separator valve failure €400--€900 80,000 km--150,000 km
● MODERATE
Water pump failure €600--€1,400 80,000 km--150,000 km

Models

MCX 4.0 V8 TT 1

Panamera 971 2019--2024

EA839 5

Macan 95B 2014--2018 Panamera 970 2013--2016 Cayenne 3.0T E3 2018--present SUV Cayenne S E3 2019--present SUV Panamera 3.0T 971 2016--present Sedan
Full MCX 4.0 V8 TT Report Full EA839 Report